Modern casino one armed bandits are controlled by computer chips and software, and the winner percentages are pre-programmed into the computer software.
Casino one armed bandits have Random Number Generators which are endlessly generating combinations, even when the slot machine is not being played.
Running jointly with the Random Number Generator of the casino slot machine is the pay out rate percent.
The pay out percent controls how much the slot machine will pay, for e.g. the pay out percent might be ninety per cent, which means the slot machine will pay out ninety percent of all the bets played, and the casino will then get to keep ten per cent.
This doesn’t imply that each and every time you bet ten credits you will receive nine in return – where is the fun and fascination in that? Instead, the casino slot will not payout for a bit, and then suddenly fire up a hot streak and you might draw the big top prize.
The profit %s will very likely vary between the different games and a few of the highly acclaimed casinos, for example Golden Online Casino, which gives a payment of up to ninety five percentage!
This means that, in essence, the slot machine takes all the dough played into it and pays it out to a few fortunate winners. The casino only gets to keep a generally tiny percentage of all the plays made.
The casino slot machine software controls every single part of the machine, from the blinking lights to the rotating of the reels.
When you hit spin on the slot machine, a combination is produced by the RNG which corresponds to the pictures on the reel.